Description

DD-WRT version 45723 contains a buffer overflow vulnerability in the UPNP network discovery service that allows remote attackers to potentially execute arbitrary code. Attackers can send crafted M-SEARCH packets with oversized UUID payloads to trigger buffer overflow conditions on the target device.

INFO

Published Date :

2026-01-21T17:27:38.228Z

Last Modified :

2026-01-22T15:11:53.533Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2021-47854 vulnerability.

Vendors Products
Dd-wrt
  • Dd-wrt
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2021-47854.

URL Resource
https://dd-wrt.com/ cve-icon cve-icon
https://download1.dd-wrt.com/dd-wrtv2/downloads/betas/2021/ cve-icon cve-icon
https://ssd-disclosure.com/ssd-advisory-dd-wrt-upnp-buffer-overflow/ cve-icon cve-icon
https://www.exploit-db.com/exploits/49730 cve-icon cve-icon
https://www.vulncheck.com/advisories/dd-wrt-upnp-buffer-overflow cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact